that list there is C300 model (046d:0805).
>
> I report that the web cam is working with uvc driver.
Thank you for the report. Could you please send me the output of
lsusb -v -d 046d:0805
> Best and thanks for the driver :)
You're we
he patches :-)
Do you think it would be worth it making the 3 patches available again
somewhere ? xawtv and tvtime are pretty much unmaintained, and mythtv seems to
have been fixed.
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use of the invalid argument error.
> Most likely this is related to the usb core and not to the driver
> itself, but it's hard to say without more info.
Could you please increase the driver verbosity (65535 is fine) and post the
messages printed to the ke
Hi Riccardo,
On Monday 01 November 2010 12:01:50 Riccardo Magliocchetti wrote:
> Il 30/10/2010 20:58, Laurent Pinchart ha scritto:
> > On Friday 22 October 2010 21:19:22 Riccardo Magliocchetti wrote:
> >> Il 20/10/2010 01:48, Laurent Pinchart ha scritto:
> >>> On Thu
se try to munmap() the buffer before calling VIDIOC_QBUF, and
mmap() it again after VIDIOC_DQBUF (basically making sure the buffer is
unmapped at any time it is under the driver's control) ? This should fix at
least some cache coherency issues and help us debug the problem further.
--
ming data?
That might explain the problem. Which webcam are you using (VID:PID) ? Have
you applied any special quirk using the quirks module parameter ?
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Hi Riccardo,
On Friday 19 November 2010 09:07:40 Riccardo Magliocchetti wrote:
> Il 19/11/2010 01:28, Laurent Pinchart ha scritto:
> > On Monday 01 November 2010 12:01:50 Riccardo Magliocchetti wrote:
> >> Il 30/10/2010 20:58, Laurent Pinchart ha scritto:
> >>> On F
ons and everything
> worked fine.
What surprises me is that the warning only appears when the camera is plugged
in a USB 3.0 port.
Neil, could you please send me the output of 'lsusb -v -d 046d:0825' for both
the USB 2.0 and USB 3.0 ports ?
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video() fails for some reason with a -EINVAL error code. You could
try tracing inside the function to see what causes the failure.
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2f> and
> tried compiling it. But it gave so many compilation errors. Has anyone
> ported UVC driver to 2.6.18 kernel(Monta Vista Linux)? Any link or pointer
> will be very helpful.
2.6.18 is very old. It will probably be possible to backport the driver, but
it won't be easy. I ca
r if ANYONE here has tried this camera and make it work...
Could you please send me the USB descriptors for your camera (lsusb -v) ?
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the author of the thread, but I could reply.
> C310 cam realy work (thanks!), lsusb -v -d 046d:0805 gives empty output,
> but lsusb -v -d 046d:081b gives the following:
I gave the wrong USB product ID in the mail, my bad.
> http://foo.ru/files/logitech-c3
Hi Martin,
On Wednesday 24 November 2010 19:24:44 Martin wrote:
> On 24/11/10 17:01, Laurent Pinchart wrote:
> > On Wednesday 24 November 2010 14:40:47 malef...@malefico3d.org wrote:
> >> The other thing is once I detected the problem is the bandwidth, what
> >> shou
Please send the lsusb -v output for your device.
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hat I should enable for
> my Logitech c300 webcam ?
>
> Besides when I boot with the uImage from you kernel I just can see the
> console , but not the DVI ir VGA screen of my FS , is there any other
> module that I should enable in order to be able to what on
r such an affordable camera. I have
> a few notes on the focus ring and infrared filter at my website:
> http://www.sccs.swarthmore.edu/users/06/bsetlow/
Thanks for the report. I've updated the supported devices list.
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e symptoms
and the messages printed by applications on the console and/or uvcvideo driver
to the kernel log ?
> So, it use this driver, but is not in the supported device list. So i send
> more info about my device, and if anyone need other information can ask to
> me. Thanks a lot.
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around.
> uvcvideo: Failed to query (129) UVC probe control : -71 (exp. 26).
> uvcvideo: Failed to initialize the device (-5).
>
> $ lsusb -v -d 064e:a136
Could you please send me the same lsusb output, but run as root ?
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_
Hi Javier,
On Monday 06 December 2010 12:29:53 javier acebes wrote:
> Hi, here are my logs in case you're still adding new hardware.
Sure. Could you please send me the lsusb -v output for your webcam (run as
root if possible) ?
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ment)
>
> luvcview does not show any MJPG formats
Could you please send me the output of lsusb -v (run as root if possible) with
both your webcams plugged in, on 2.6.32.26 ?
> Have there been any changes in the driver that could affect MJPG
> formats?
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brands as well ?
Do other USB devices connected to the same controller still work after the
camera starts to fail ?
> Sometimes it doesn't work straight after booting.. but most of the time
> it works fine for a few hours.
>
> Any ideas or patches that could solve this issu
t;uvcvideo: Dropping payload (out of sync).
> <7>uvcvideo: Unknown status event type 10.
> <7>uvcvideo: Unknown status event type 4.
Your USB controller and/or driver might be too slow.
> Do you think the kernel version is too old ?
It's definitely old. Please try a new ke
hy your application doesn't start dequeuing (and
requeuing) buffers at 103.129925, when the first frame is complete. It lets
the buffers queue get empty, resulting in frame drop.
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eems to crash when you try to read the current value of the
brightness, contrast and hue controls. Does it happen randomly, or every time
you try to access those controls ?
> Does anyone tell me why and how to solve it ?
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.
>
> lsusb gives Bus 001 Device 003: ID 0c45:6310 Microdia
>
> and the output from lsusb -v -d 0c45:6310 appears below.
Thank you for the report. I've updated the supported devices list.
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Does the camera work correctly ?
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g as root).
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tion using the webcam, the effect will be similar :-)
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mode?
I haven't tried bulk mode recently, but I know I got it working some time ago
(maybe with a different code base though).
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045e:0770
(running as root if possible) ?
> (Device has a build-in mircophone which I have not tested yet -- not sure if
> mircrophone is UVC-related, is it?)
The microphone is handled by the UAC (usbaudio) driver.
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he 'lsusb -v' output for your device (if possible
running as root) ? I'll then update the supported devices list.
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using ffmpeg MJPEG decoder? They argue it has better performance:
>
> https://roundup.ffmpeg.org/issue1816
You will have to ask that on the linux-media mailing list. I know there was a
mail thread about the same topic recently.
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re is properly initialized.
> i only modified the unicap-devel to get defaults value after waiting 300
> milliseconds.
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d output of lsusb -v -d 046d:080a but the file is 66k and the
> mailing-list allows only 40k attachments.)
The limit has been raised, could you retry ?
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s powered on
> LUbuntu , but i find i can capture the image , i check the kernel , it
> contains uvcvideo.ko ,what can i do if i want to used the camera in the
> PC104 . Thanks .
The first step would be to provide details about your problem.
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it from the vendor documentation.
> Sorry if these questions are basic or should be obvious; however, they are
> not clear to me at this time from reading the UVC documentation.
No worries.
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oken auto exposure?
> So user space apps can make right decision?
There's no API for that that I know of.
> PS: in attachment is quirks_patch, and lsusb.
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kype at least to core/hang on first
> open of /dev/video0 but work on subsequent runs.
Could you please send me the output of
lsusb -v -d 152d:0310
(running as root if possible) ?
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p responding.
[ 477.756605] uvcvideo: Failed to submit URB 0 (-28).
-28 is -ENOSPC, it seems to be a bandwidth issue.
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Hi Ian,
On Monday 17 January 2011 23:41:55 Ian Macalinao wrote:
> 046d:0825
>
> Logitech C270 webcam
Could you please send me the output of
lsusb -v -d 046d:0825
(run as root if possible) ?
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M), or the Logitech "UVC
> Camera (046d:0994)"- don't remember the product name).
>
> Have anyone experience any problem with this camera?
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t let me know.
Could you please send me the output of
lsusb -v -d 0ac8:3460
(run as root if possible) ?
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e output of
lsusb -v -d 5986:0314
(run as root if possible) ?
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new interface driver snd-usb-audio
> [14869.857110] HP WMI: Unknown response received
> [15692.956427] show_signal_msg: 9 callbacks suppressed
> [15692.956437] xawtv.bin[29033]: segfault at 0 ip 0106d770 sp bfe12bf8
> error 4 in libc-2.12.1.so[ff9000+157000]
> ---
>
> Built-in microphone works over USB.
Thanks for the report. Your camera is a rebranded MSI Starcam Racer. I've
updated the website.
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elopers of the linux UVC drivers for
> your excellent work.
You're welcome.
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?
>
> Also, any way to reset the usb bus?
You should report this to the linux-usb mailing list. It's a low-level USB
issue out of scope of the UVC driver.
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try to capture images in the problematic resolution with a
test software such as yavta (git.ideasonboard.com) ?
> Should you need any further information, or something I can do at my
> laptop, just ask for it ,
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code ?
webcam.c is sample code only. For real-world applications you're supposed to
write your own gadget driver than instanciates a UVC function, and develop a
userspace application (which can be based on uvc-gadget - note the GPL license
though) that matches your driver.
There'
;
> Has anyone came across this sort of issue? Is there any solution worth
> trying it?
Kernel log ?
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lled usbmon sniffing. Did this on my 64bit
> box.
The trace is in text format and doesn't contain the data, so it's not very
useful. Can you capture a couple of raw MJPEG frames (with yavta from instance
- git.ideasonboard.org) and send them for
Hi,
On Saturday 05 February 2011 14:24:01 Mikko R wrote:
> Laurent Pinchart ideasonboard.com> writes:
> > Hi Ian,
> >
> > On Monday 17 January 2011 23:41:55 Ian Macalinao wrote:
> > > 046d:0825
> > >
> > > Logitech C270 webcam
> >
>
mer, camera not
> worked.
mjpg-streamer requires a camera that supports MJPEG in hardware. Your webcam
supports YUV only.
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anism if available)
> on connection, or format negotiation
> G_FMT to get resolution and format
> buffer setup
> STREAM_ON
> loop
> select
> read event ???
> QBUF
> DQBUF
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n. Whether it's a uvcvideo or device issue is
hard to tell, you haven't really told me what goes wrong.
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same webcam (built into
> a MSI Wind U135DX netbook).
>
> Here's the output of the above command:
[snip]
Thanks for the report.
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v4l2_fourcc('H',
> '2', '6', '4') /* H.264 Annex-B NAL Units */
I've discussed H.264 support with Hans Verkuil (CC'ed) some time ago, and his
opinion was that we shouldn't use a new V4L2 format for it. H.264 is
essentially an MPEG
c/uvcvideo.h
> +++ b/drivers/media/video/uvc/uvcvideo.h
> @@ -152,6 +152,9 @@ struct uvc_xu_control {
> #define UVC_GUID_FORMAT_BY8 \
> { 'B', 'Y', '8', ' ', 0x00, 0x00, 0x10, 0x00, \
>0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
> +#define UVC_GUID_FORMAT_MPEG \
> + { 'M', 'P', 'E', 'G', 0x00, 0x00, 0x10, 0x00, \
> + 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
>
> /*
> *
> Driver specific constants.
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Hi Stephan,
On Friday 18 February 2011 00:28:54 Stephan Lachowsky wrote:
> On Thu, 2011-02-17 at 08:01 -0800, Laurent Pinchart wrote:
> > On Friday 28 January 2011 20:38:58 Stephan Lachowsky wrote:
> > > Associate the H.264 GUID with an H.264 pixel format so that frame
>
Hi Stephan,
On Thursday 17 February 2011 18:18:38 Stephan Lachowsky wrote:
> On Thu, 2011-02-17 at 08:03 -0800, Laurent Pinchart wrote:
> > On Friday 28 January 2011 20:35:05 Stephan Lachowsky wrote:
> > > Parse the UVC 1.0 and UVC 1.1 VS_FORMAT_MPEG2TS descriptors.
> &g
On Tuesday 15 February 2011 22:12:09 modysama wrote:
> Laurent Pinchart writes:
> > On Friday 11 February 2011 17:30:32 modysama wrote:
[snip]
> > > modysama ubuntu:~$ cheese
> > > libv4l2: error turning on stream: No space left on device
> >
> > Do you
On Wednesday 16 February 2011 13:38:38 Moritz Barsnick wrote:
> On Tue, Feb 15, 2011 at 19:58:12 +0100, Laurent Pinchart wrote:
> > What happen if you try to capture images in the problematic resolution
> > with a test software such as yavta (git.ideasonboard.com) ?
>
> W
es in
the problematic resolution with a test software such as yavta
(git.ideasonboard.com) ?
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gt;
> >> Any pointers on how can I help getting this camera supported on the
> >> driver?
>
> Did you try it without the quirk ? Not all syntek cameras require it:
> http://lists.berlios.de/pipermail/linux-uvc-devel/2009-March/004705.html
If the quirk turns out to be requir
of
lsusb -v -d 0458:707c
(running as root if possible) ?
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Hi Carlos,
On Sunday 20 February 2011 00:50:04 Carlos Silva wrote:
> OK, just tested with no quirks and it works. Want me to send a patch for
> it?
If no quirk is required, you don't need to patch the driver. It will work out
of the box.
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ant to know is what the impact would be of defining a new QUIRK
> that overrode the frame buffer size for compressed frames and calculated
> them at (say) 2 bits per pixel?
>
> Do other webcams get this right?
You would be surprised by how many webcams get things wrong.
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7;s a low-level USB issue. Bad cables, buggy webcam, noisy environment, ...
The uvcvideo driver isn't at fault. If the camera decides to disconnect,
there's little the driver can do.
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lt and step values reported by the driver
when you query the exposure control ?
> I'm running 2.6.32-29-generic kernel on Ubuntu Lucid 64-bit. Don't know the
> driver version.
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re is a product in the market that uses this pixel format, but as the
> RGBP format is not supported out-of-the-box by UVC, we need to patch the
> kernel driver each time we go along with a kernel upgrade.
Can I ask you which product ?
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eam,
>
> if (!(format->flags & UVC_FMT_FLAG_COMPRESSED) ||
>(ctrl->dwMaxVideoFrameSize == 0 &&
> - stream->dev->uvc_version < 0x0110)) {
> + stream->dev->uvc_vers
debug("%s: bandwidth: %u; psize: %u; best_psize: %u",
> + __func__, bandwidth, psize, best_psize);
> + if ((psize >= bandwidth && psize <= best_psize) ||
> + (i == intf->num_altsetting - 1)) {
> + if (bandwidth > psize)
> + pr_debug("%s: trying psize=%u even if "
> + "bandwidth=%u", __func__,
> + psize, bandwidth);
> altsetting = i;
> best_psize = psize;
> best_ep = ep;
> - }
> + break;
> + }
> }
>
> if (best_ep == NULL) {
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Ubuntu forum told me that according to the results of the two showed no
> error. The Ubuntu forum concluded that it could be possibly a driver bug.
> That's why I sent this message to this mailing list.
>
> Is there Any idea for solving this problem?
Could you please try to set
Hi Riku,
On Tuesday 25 January 2011 15:36:42 Riku Seppälä wrote:
> On 01/25/2011 03:13 PM, Laurent Pinchart wrote:
> > Hi Riku,
> >
> > On Monday 10 January 2011 14:57:12 Riku Seppälä wrote:
> >> Hi,
> >>
> >> I just bought Logitech c905 webcam an
Hi Pádraig,
On Tuesday 25 January 2011 15:20:18 Pádraig Brady wrote:
> On 25/01/11 13:39, Laurent Pinchart wrote:
> > On Monday 17 January 2011 16:09:33 Pádraig Brady wrote:
> >> Otherwise one gets the following in dmesg:
> >>
> >> uvcvideo: Failed to query
Hi Alexander,
On Saturday 08 January 2011 14:47:41 Alexander Lopatin wrote:
> Sure. I've attached "lsusb -d 041e:406b -v" output, ran as root.
Thank you for the information, and apologies for the late reply. I've updated
the supported devices list.
--
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Hi Carlos,
On Sunday 06 March 2011 13:55:16 Carlos Silva wrote:
> On Sun, Mar 6, 2011 at 10:56, Laurent Pinchart wrote:
> > On Sunday 20 February 2011 00:50:04 Carlos Silva wrote:
> > > OK, just tested with no quirks and it works. Want me to send a patch
> > > for
On Sunday 06 March 2011 14:02:08 Carlos Silva wrote:
> On Sun, Mar 6, 2011 at 12:57, Laurent Pinchart wrote:
> > On Sunday 06 March 2011 13:55:16 Carlos Silva wrote:
> > > On Sun, Mar 6, 2011 at 10:56, Laurent Pinchart wrote:
> > > > On Sunday 20 February 20
Hi Mohamed,
On Sunday 06 March 2011 21:50:57 Mohamed Amine JALLOULI wrote:
> Hi Laurent Pinchart,
>
> Thanks you very much for answering ton my question.
>
> First, how can I set the quirks option to 0x10 when loading the uvcvideo
> drive? (if you have a command line, it w
ovide or do to add support for my
> camera and the other similar ones?
>
> Is it as simple as adding the device id to a white list?
Could you please send me the output of
lsusb -v -d 199e:8297
(running as root if possible) ?
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= USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,
.idVendor = 0x199e,
.idProduct= 0x8207,
.bInterfaceClass = USB_CLASS_VENDOR_SPEC,
.bInterfaceSubClass = 1,
.bInterfaceProtocol = 0 },
Please load the module with trace=65535 for additional debug messages in the
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MacBookPro:/usr/src/linux-source-2.6.35/drivers/media/video/uvc#
> uname -a Linux lmf-MacBookPro 2.6.35-22-generic #33-Ubuntu SMP Sun Sep 19
> 20:34:50 UTC 2010 i686 GNU/Linux
>
> goes the -generic part matter?
Yes it does. You should install the sources of your running kernel.
Distrib
x27;t be able to come up with a
fix for your problem. Based on information I've received from the camera
manufacturer, your camera is really not UVC compliant. It understands some UVC
commands, but it requires a proprietary protocol for proper configuration.
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Laurent Pinchart
__
information.
You should have done it the other way around. If the driver is already loaded,
remove it with modprobe -r uvcvideo. Then load it with modprobe uvcvideo
quirks=0x10.
> #3- the result of the command sudo lsusb -v -d 0ac8:0332 is
Thanks.
--
e out how to get the sound to work.
> >>>> The details are here:
> >>>>
> >>>> http://www.linuxquestions.org/questions/linux-hardware-18/web-cam-gear
> >>>> head-model-wc735i-vimicro-usb-camera-al
Hi Jani,
On Sunday 06 March 2011 16:12:01 Jani Frilander wrote:
> 2011/3/6 Laurent Pinchart wrote:
> > Could you please send me the output of
> >
> > lsusb -v -d 045e:076d
> >
> > (running as root if possible) ?
>
> Gzipped file attached.
Thanks.
>
of information.
I'm not aware of any documentation either. That kind of information needs to
come from vendors, so you will need to contact them directly.
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e camera crash and reboot (much
more likely) or by electrical issues such as bad cables or a noisy environment
(both are usually related).
If you have a Windows partition on the computer, does the camera work on
Windows ? Can you also try a Ubuntu 10.04 live CD ?
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Regards,
Laurent Pi
t on the list.
> >>>
> >>> The ID number is: 041e:4088
> >>
> >> I'll bet Laurent want you to send the output of
> >>
> >> lsusb -v -d 041e:4088
> >>
> >> (running as root if possible :)
Indeed :-) Thanks for
and you will erase the on-board flash.
> BTW, I know that some Logitech webcams support raw data streaming, but I
> can't use them for mechanical and other reasons.
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y have better luck with gspca, though, even if this implies a bit of
> reverse engineering from the windows driver.
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tory
> `/usr/src/kernels/2.6.18-194.17.1.el5.centos.plus-i686'
> make[1]: *** [default] Error 2
> make[1]: Leaving directory `/home/az/v4l-dvb-abd3aac6644e/v4l'
> make: *** [all] Error 2
> [/code]
>
> can't move further again...
> what a pain :(
Centos ships
umentation of UVC
> driver API? Thank you,Paul
It's indeed missing :-) I'm working on the API documentation.
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s is probably
caused by a camera firmware bug, leading to a camera crash. There's little
that can be done on the host side. I'll mark the camera as potentially buggy
in the list of supported devices.
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Regards,
Laurent Pinchart
_
0 Mbit/s . So, theoretically you can use 3,4 cams. DO not forget a
> real usb bandwidth and uvc overhead.
Periodical transfers are limited to 80% of the USB bandwidth, so you're
limited to 2.74 640x480 @30fps streams (not including UVC and USB overhead).
> If you need more cams, you
IOC_QUERYCTRL or UVCIOC_CTRL_GET fails with EINVAL. Is it normal
> that UVCIOC_CTRL_ADD works fine with random GUID? In addition to 0 return
> value from UVCIOC_CTRL_ADD, trying to add the same control again produces
> EEXIST error, so it seems that it was accepted by the driver.
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Regards
f them returns error 17 (file exists). Trying to access any of them
> with ioctl VIDIOS_G_CTRL returns EINVAL error.
>
> BTW, looking at XU listing above I noticed that bNumControl = 8, but there
> are only 6 bits set in bmControls (0x59, 0x80, 0x80). Is that UVC compliant?
No
8:300c Guillemot Corp.
> Hercules Classic Silver (newer hardware)
> (http://www.hercules.com/de/webcam/bdd/p/22/hercules-classic-silver/)
Thanks for the patch. Could you please send me the output of
lsusb -v -d 06f8:300C
(running as root if possible) ?
--
rules, if possible.
You can create a udev rule that invokes uvcdynctrl (or v4l2-ctl, or yavta, or
any other such command line V4L2 control tool).
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Laurent Pinchart
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